Hydrocarbon-burner



W. M..HOFFMAN.

HYDROCARBON BURNER.

APPLICATION FILED JUNE 7. 1920.

Patented Dec. 27, 1921.

2 SHEETSSHEET 1- Patented Dec. 27, 1921.

2 SHEETS-SHEET 2.

attain;

a stance such as asbestos, indicated as c, which UNITED STATES PATENTOFFICE.

WILLIAM ML, H MEMAN, 0R RUBIN-l0, NEW YORK, ASSIGNOR 'ro GENERAL FUELABBARA'MIS GQMQBA'HQN, or BUFFALO, NEW YoRK, A CORPORATION orEYDRQCARBON-IBURNER.

i To all whom it may concern Buflalo, county of Erie, State of New Be itknown that E, Wrnnmn HorrMAN, citizen of the United States, residin itor have invented a certain new and useful: 1m provement in HydrocarbonBurners, and decl'are the following to be a full, clear, and

exact description of thesame, such as will enable others skilled in theart to which it ipertainstomake and use the same, reference "ein had tothe accompanying drawings,

whic form apart of this specification.

a My invention relates to an improved oil burner, particularly to that tpe of burner ada ted toutilize the cheaper, eavier grades of 31 on theline 4 -4 of ig. 1. l

casings indicated as a and b respectively.

Fig. 5 is an elevation of the rear end. My improved burner comprises uper and lower burner plates in the form 0 hollow The lower plate carriesupwardly projecting rtially closin the openng at; the en s. l heinterior of these casis filled with a refractory, porous subis suppliedwith fuel; oil through conduitd lbadin from asuitablebburce of fuelsupply discharging into an oil passageway d each casing supplied fromthe conduit (1.

which passageway extends the entire length of each casing and connectsthem together so as to form aln oil circuit extending through lheinterior of thiseil passageway is loosely fil ledwith a refractormorporous substance,

not shown in the draw ng, in order that the views may appear moreclearly.

The wall of the passageway d where such passageway exten s through theeasin 1s error-aired as at e to permit the fuel oil owmg therethrou toenter the casing; proper through the perforations. The action of therefractory porousfililer will be of course in each instance to delay themovement of the fuel oil in that the temperature Specification ofLetters Patent.

Application filed June 7,

Patented Dec. 27, 1921. 1920. Serial No. 387,002.

thereof may be raised even to the point of volatilization before itpasses out through the erforated face of the burner plates.

v T ese burner plates are positioned one above the other, their opposedfaces being perforated as at f to permit the passage of 011therethrough. These plates are spaced from each other so as to form acombustion chamber therebetwcen, such chamber being closed at the frontand rear except as here lnafter indicated, but open at the ends topermit of an air draft to be drawn therethrough. Each plate or casing isshaped so "as to flare outwardly at the center so as to form an enlargedcentral portion in such combustion chamber. This enlarged centralportion forms the combustion chamber proper and opening axially thereinfrom the rear 18 conduit It provided with nozzle If adaptedto project ajet of steam or air into the interior thereof, along the face of theburner lates. This vapor jet will create a forced raft through thecentral portion of the combustion chamber which will also pro duce sidedrafts through the open ends of the burner along the face of the burnerplates drawing the burning products of combustion and air into thecentral portion of the combustion chamber along the face of the burnerplates causing a thorough mixing of the burning hydrocarbon particlesand air and drawing the same into the enlarged central ortion where theentire burning mass will e forced along the face of the burnerplatesthoroughly mixing the steam or air from the nozzle with the urninggaseous products and completing the combustion.

The conduit h is shown with the pipes j and provided with control valve7' and i respectively, which pipes lead to supply reservoirs notindicated, one being the conduit for the passage of steam and the othera conduit for the passage of air under pres-- sure.

A disk regulator valve of known design, indicated as k, provided withapertures 71:

, adapted to register with apertures through the rear wall of the casingis provided as shown to regulate admission of air from the rear aroundthe conduit h.

At the mouth of the enlarged portion of the combustion chamber is afunnel-sha d projector g adapted to project the flame orward forutilization in connection with such apparatus as may be desired.

In the operation of this device, the forced draft created through thecentral portion of the burner by the steam or air jet will cause an airdraft along the face of the perforated burner plates. Air drawn alongthese perforated faces will mix with the burning particles ofhydrocarbon and the entire burning mass will be carried to the enlargedcentral portion of the combustion ChilllllJQi whereupon, being furthermixed with the steam or air under pressure from the nozzle 7f,combustion will be completed. The restricted area of the combustionchamber at the sides into which a limited amount of air will beadmitted, will tend to mix this air with the burning particles ofhydrocarbon before combustion has been completed and the en tire burningmass will be drawn toward the central enlarged portion of the burner forcompletion of combustion on the completion of the mixing of the severalproducts.

What I claim is: i

1. In a hydrocarbon burner, an upper and lower plate, such plates spacedfrom each other and so formed as to provide a combustion chambertherebetween of enlarged extent intermediate its ends, said burnerplates formed of a refractory porous material through which fuel oil isadapted to percolate to the interior of the burner.

2. In a hydrocarbon burner, a pair of opposed burner plates comprisinghollow casings filled with a refractory porous substance, the interiorface of said plates being perforated to permit the passage of fueltherethrough, means for supplying liquid fuel to the interior of saidhollow casings so that it may percolate through the porous rcfractoryfiller to the interior of the burner.

3. In a hydrocarbon burner, an upper and lower perforated burner platespaced from each other so as to provide a combustion chambertherebetween open at its ends to provide an air passageway, said platesso formed that the combustion chamber will be of enlarged extentintermediate its ends, each of said plates provided with an exterioradjacent wall of refractory porous material, means for supplying fueloil to the outer surfaceof said wall.

4. In a hydrocarbon burner, an upper and lower burner plate spaced fromeach other so as to provide a combustion chamber therebetween open atthe ends to provide an air inlet, means for forcing a vapor jet throughsuch combustion chamber at an. angle to the air draft through the openends.

5. Ina hydrocarbon burner, a pair of horizontal burner plates spacedfrom each other so as to provide a combustion chamber therebetween openat opposite ends to provide an air inlet but enlarged near the center,means for forcing a steam or air jet through such enlarged portion ofthe combustion chamber, in such a manner as to draw the products ofcombustion along the face of the burner plates into the enlarged centralportion of the chamber and force the same through such enlarged centralportion along the face thereof.

6. In a hydrocarbon burner, an upper and lower burner plate, opposedfaces of which are perforated to permit the passage of oil therethrough,means for supplying oil thereto, such plates spaced from each other toprovide a combustion chamber thcrebctwceu open at the end to provide anair draft passageway, such plates so formed that said combustion chamberis narrowed as it approaches the air inlet openings.

7. In a hydrocarbon burner, a pair of opposed burner plates comprisinghollow casings, the opposed faces of which are perforated to permit thepassage of oil therethrough, the interior of such casings being filledwith a refractory porous material, means for supplying oil thereto, saidplates spaced from each other to provide a com bustion chambertherebetween with an enlarged central portion and narrowed end portions,such end portions open to the atmosphere, means for forcing a vapordraft through such central portion in such a manner as to draw theburning particles of hydrocarbon and air along the face of the burnerplates into the enlarged central portion and force the same through saidenlarged portion of the burner along the face thereof.

8. In a hydrocarbon burner, an upper and lower burner plate comprisinghollow casings filled with a porous refractory material, opposed facesof which casings are perforated to permit the passage of fueltherethrough, means for supplying fuel to the interior of such casings,said plates spaced from each other so as to provide a combustion chambertherebetween with an enlarged central portion and narrowed end portions,such combustion chamber open at the ends to provide an air inlet, meansfor forcing a. vapor jet axially through such enlarged central portion,means for regulating the admission of air through an auxiliary air inletto such enlarged portion of the combustion chamber.

9. In a fuel oil burner, a combustion. chamber comprising opposed porousrefractory burner plates spaced from each other, means for supplyingfuel oil to the outer surface of said plates, said combustion chamberformed with an enlarged central portion and narrowed end portions opento the atmosphere.

10. In a fuel oil burner. a combustion chamber comprising a pair ofopposed spaced-apart burner plates formed of porous refractory materialso constructed that fuel oil may be supplied to the outer surfacethereof, said plates so formed and relatively arranged that the centralportion thereof is of enlarged extent narrowed as it a proaches oppositeends and open at said en s to prov1 e an atmospheric inlet, means forprojectin a vapor jet throu h the enlarged centrfi portion of said comustion chamber in such a manner as to create a forced draft through thenarrowed end portions of the chamber.

11. In a fuel oil burner, a hollow combustion chamber comprising twoopposed spaced-apart walls formed of porous refractory material sopositioned as to provide atmosphere inlet openings, means for supplyingfuel oil to the outer surface of said porous refractor chamber walls,said chamber so formed t at air Will be drawn through the inlet openingsand through a confined por tion of relatively small diameter to acentral portion of substantially enlarged diameter.

In testimony whereof, I sign this specification.

WILLIAM M. HOFFMAN.

